Faceting Design Diagram: 9 By – Reflector – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

9 By – Reflector (CHECK11.JRG)2.15 carat Amethyst
By Jeff R. Graham
Copyright 2001
93.1% Light Return
Angles for R.I. = 1.54
17 facets + 4 facets on girdle = 21
2-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.304 T/L = 0.304
P/W = 0.435 C/W = 0.262
H/W = (P+C)/W+0.02 = 0.716P/H = 0.607 C/H = 0.365
Vol./W^3 = 0.341

Addition # 6 – This is a very simple, fast design to cut. It works well for earrings in about any type of material.


Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler